Messages in this thread | | | From | David Howells <> | Subject | Re: 2.6.8.1-mm4 (strange behavior on dual Opteron w/ NUMA) | Date | Mon, 23 Aug 2004 16:29:33 +0100 |
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Rafael J. Wysocki <rjw@sisk.pl> wrote: > It has the same problems that I've reported for 2.6.8.1-mm3: > > 1) ALT-SysRq-<command key> does not work, although "echo <command> > > /proc/sysrq-trigger" does (may be specific to x86-64).
I'm seeing this on my Dual PPro testbox too. I'm running 2.6.8.1-mm4 using the i386 arch. I get an oops (which I've attached) from SysRq+B and from normal reboot.
> 2) After issuing: > > # rmmod snd_seq_oss > > the kernel goes into a strange state:
And that too; except that I'm seeing it with NFS and modules of my own devising. I've attached an excerpt of a SysRq trace of this. Note that it doesn't start executing the module exit function as far as I can tell.
Both these problems are 100% reproducible.
David
=========== REBOOT OOPS ===========
nfsd: last server has exited nfsd: unexporting all filesystems Restarting system. Unable to handle kernel paging request at virtual address c041a3e0 printing eip: c041a3e0 *pde = 00463027 *pte = 0041a000 Oops: 0000 [#1] SMP DEBUG_PAGEALLOC Modules linked in: nfs cachefs CPU: 0 EIP: 0060:[<c041a3e0>] Not tainted VLI EFLAGS: 00010282 (2.6.8.1-mm4) EIP is at find_isa_irq_pin+0x0/0x70 eax: 00000003 ebx: 00000000 ecx: 000100fe edx: 00000000 esi: 01234567 edi: c4d6c000 ebp: c4d6c000 esp: c4d6de60 ds: 007b es: 007b ss: 0068 Process reboot (pid: 2751, threadinfo=c4d6c000 task=c5527a40) Stack: c011227f 00000000 00000003 00000000 00000001 00000000 c010ebc8 00000000 c4d6c000 c010ebe9 01234567 c4d6c000 c011c167 c0351071 00000000 c012ba1d 00000000 00000001 00000000 c10bb7c0 00000001 00000000 c01452ef c10bb7c0 Call Trace: [<c011227f>] disable_IO_APIC+0x1f/0x140 [<c010ebc8>] machine_shutdown+0x48/0x60 [<c010ebe9>] machine_restart+0x9/0x90 [<c011c167>] printk+0x17/0x20 [<c012ba1d>] sys_reboot+0x19d/0x400 [<c01452ef>] cache_free_debugcheck+0x17f/0x2b0 [<c02d41fb>] sock_destroy_inode+0x1b/0x20 [<c02d41fb>] sock_destroy_inode+0x1b/0x20 [<c017dc65>] destroy_inode+0x35/0x60 [<c017f67e>] generic_forget_inode+0x14e/0x1c0 [<c01452ef>] cache_free_debugcheck+0x17f/0x2b0 [<c017f773>] iput+0x63/0x90 [<c017abd3>] dput+0x33/0x340 [<c0160168>] __fput+0xa8/0x110 [<c0160170>] __fput+0xb0/0x110 [<c015e5d9>] filp_close+0x59/0x90 [<c015e68f>] sys_close+0x7f/0x100 [<c0113ae0>] do_page_fault+0x0/0x5c0 [<c010459f>] syscall_call+0x7/0xb Code: Bad EIP value. Badness in send_IPI_mask_bitmask at arch/i386/kernel/smp.c:167 [<c010f5c4>] send_IPI_mask_bitmask+0x74/0x80 [<c010f9df>] smp_send_reschedule+0x1f/0x30 [<c01155b0>] try_to_wake_up+0x2b0/0x2e0 [<c0117041>] __wake_up_common+0x41/0x70 [<c01170bb>] __wake_up+0x4b/0xb0 [<c012e44f>] __queue_work+0x5f/0xc0 [<c012e505>] queue_work+0x55/0x70 [<c012e3c9>] call_usermodehelper+0xc9/0xd6 [<c012e290>] __call_usermodehelper+0x0/0x70 [<c02565ef>] sprintf+0x1f/0x30 [<c0253486>] kset_hotplug+0x1f6/0x290 [<c0253587>] kobject_hotplug+0x67/0x70 [<c02538fb>] kobject_del+0x1b/0x40 [<c02875d9>] class_device_del+0x99/0xc0 [<c0287613>] class_device_unregister+0x13/0x30 [<c0287c53>] class_simple_device_remove+0xa3/0x127 [<c026d42c>] vcs_remove_devfs+0x1c/0x39 [<c0275145>] con_close+0x85/0x90 [<c0263a1d>] release_dev+0x6ad/0x6d0 [<c01452a1>] cache_free_debugcheck+0x131/0x2b0 [<c014f3da>] remove_vm_struct+0x8a/0xd0 [<c0263f95>] tty_release+0x45/0xc0 [<c010f829>] flush_tlb_mm+0x49/0xa0 [<c01601be>] __fput+0xfe/0x110 [<c015e5d9>] filp_close+0x59/0x90 [<c011da54>] put_files_struct+0x64/0xd0 [<c011ea90>] do_exit+0x1f0/0x590 [<c015f361>] sys_read+0x51/0x80 [<c011ee63>] sys_exit+0x13/0x20 [<c010459f>] syscall_call+0x7/0xb
===================== RMMOD SYSRQ+T EXCERPT =====================
rmmod D C0341C03 0 2010 1932 (NOTLB) c4737e80 00000082 00000002 c0341c03 c4737ec4 c012e505 c4737e64 0dfec5b1 00000007 3e5a438a 00015b43 c41fddb0 15b433e8 00000000 c1104f60 c3c72bec c01150a5 c3d95a40 c11054ac c4737f04 c4737f08 c4737ec0 c4737ee8 c0341c03 Call Trace: [<c0341c03>] wait_for_completion+0xb3/0x1a0 [<c012e505>] queue_work+0x55/0x70 [<c01150a5>] activate_task+0xf5/0x120 [<c0341c03>] wait_for_completion+0xb3/0x1a0 [<c0116fe0>] default_wake_function+0x0/0x20 [<c0116fe0>] default_wake_function+0x0/0x20 [<c01155fd>] wake_up_process+0x1d/0x30 [<c0139b3c>] __stop_machine_run+0x9c/0xc0 [<c0138e80>] __try_stop_module+0x0/0x41 [<c0139b7f>] stop_machine_run+0x1f/0x38 [<c0138e80>] __try_stop_module+0x0/0x41 [<c01360d8>] try_stop_module+0x38/0x40 [<c0138e80>] __try_stop_module+0x0/0x41 [<c01362a2>] sys_delete_module+0x122/0x180 [<c01212ea>] __do_softirq+0xba/0xd0 [<c01103dd>] smp_apic_timer_interrupt+0x8d/0x100 [<c010456c>] system_call+0x0/0x2c [<c010459f>] syscall_call+0x7/0xb kstopmachine R running 0 2011 6 2012 36 (L-TLB) kstopmachine R running 0 2012 2011 (L-TLB) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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